.header {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: xx-large;
}

.cargando {
	font-size: small;
	font-style: italic;
}

.main {
	position: absolute;
	left: 50%;
	top: 50%;
	margin-left: -250px;
	margin-top: -200px;
	width: 500px;
	height: 400px;
	
	border: 1px #000 dotted;
}